Question

Find the cost of covering a playground at ₹ 3 per sq m if it is 30m long and 15m wide. Also find the cost of fencing it at the rate of ₹ 20 per metre

Answer 1

Answer:

Step-by-step explanation:

Length=30 m

Breadth=15 m

Area⇒Length×Breadth

       ⇒30×15    

        ⇒450 m²

Perimeter⇒2(L+B)

                ⇒2(30+15)

                 ⇒2×45

                  ⇒90 m

Now,

Cost of covering⇒Area×Rate

                           ⇒450 m²×3 per sq m

                           ⇒₹1350

∴cost of fencing⇒Perimeter×Rate

                           ⇒90 m × 20 per metre

                            ⇒₹1800

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